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brazil savings yield rule

Brazilian savings yield rule: when it changes

Savings accounts look simple, but the rule changes with Selic, and that catches many people off guard.

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What to watch in Brazilian savings

  • When Selic is above the legal trigger, savings tend to follow 0.5% per month + TR; below it, the rule becomes tied to the policy rate.
  • Even though the operational simplicity is appealing, that does not automatically mean better returns than CDB or Tesouro Selic.

Comparisons that matter

Higher Selic

Input
Cenário acima do gatilho
Expected output
Regime clássico de 0,5% a.m. + TR

Useful to understand the rule seen in many recent periods.

Comparison with CDB

Input
Mesmo principal e prazo
Expected output
Rendimento líquido pode ser inferior ao de alternativas conservadoras

Helpful when balancing simplicity against yield.

Full tool FAQ

Since 2012, savings use two rules: if Selic > 8.5% p.a. → 0.5%/month + TR; if Selic ≤ 8.5% p.a. → 70% of Selic/month + TR.

Frequently asked questions

Does Brazilian savings always yield 0.5% per month?

No. It depends on Selic and the rule in force for the relevant period.

Does TR matter much?

In many periods it adds only a little, but it still forms part of the legal yield composition.